driver: Make sure we don't change the return value in a called function.

2020-03-29 20:45:46 +00:00 · 2020-03-29 20:45:46 +00:00 · b8c93afd34
parent 2aca4e2c02
commit b8c93afd34
1 changed files with 1 additions and 1 deletions
--- a/zsh-syntax-highlighting.zsh
+++ b/zsh-syntax-highlighting.zsh
@ -72,7 +72,7 @@ typeset -ga ZSH_HIGHLIGHT_HIGHLIGHTERS
 _zsh_highlight()
 {
  # Store the previous command return code to restore it whatever happens.
-  local ret=$?
+  readonly ret=$?

  # Remove all highlighting in isearch, so that only the underlining done by zsh itself remains.
  # For details see FAQ entry 'Why does syntax highlighting not work while searching history?'.